Add support for LINGUAS for listing translations to install.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 8adeb41110)

doc/CMakeLists.txt

@@ -1,12 +1,13 @@
-#################################################
-#
-#  (C) 2010-2011 Serghei Amelian
-#  serghei (DOT) amelian (AT) gmail.com
-#
-#  Improvements and feedback are welcome
-#
-#  This file is released under GPL >= 2
-#
-#################################################
+file( GLOB _dirs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} * )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
 
-tde_auto_add_subdirectories()
+foreach( _dir ${_dirs} )
+  if( IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${_dir} AND
+      EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${_dir}/CMakeLists.txt )
+    if( "${_dir}" STREQUAL "en" OR
+        "${_linguas}" MATCHES "^;*$" OR
+        ";${_linguas};" MATCHES ";${_dir};" )
+      add_subdirectory( ${_dir} )
+    endif( )
+  endif()
+endforeach()

translations/messages/CMakeLists.txt

@@ -1,7 +1,14 @@
 file( GLOB_RECURSE po_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.po )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
 
 foreach( _po ${po_files} )
   get_filename_component( _lang ${_po} NAME_WE )
-  string( REGEX REPLACE "^([^/]*)/.*" "\\1" _component "${_po}" )
-  tde_create_translation( FILES ${_po} LANG ${_lang} OUTPUT_NAME ${_component} )
+  if( "${_linguas}" MATCHES "^;*$" OR ";${_linguas};" MATCHES ";${_lang};" )
+    if( "${_po}" MATCHES "^([^/]*)/.*" )
+      string( REGEX REPLACE "^([^/]*)/.*" "\\1" _component "${_po}" )
+    else( )
+      set( _component "${PROJECT_NAME}" )
+    endif( )
+    tde_create_translation( FILES ${_po} LANG ${_lang} OUTPUT_NAME ${_component} )
+  endif( )
 endforeach( )